化学浴沉积法制备ZnO纳米线的形貌分析
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摘要
为了制备垂直排列长径比高的ZnO纳米线,首先采用脉冲激光沉积法(PLD)在不同温度的掺锡氧化铟(ITO)透明导电玻璃衬底上制备一层ZnO种子层,然后用化学浴沉积法(CBD)在已制备了种子层的衬底上生长ZnO纳米线,同时系统地研究了不同生长条件对ZnO纳米线生长行为的影响,并使用扫描电子显微镜和原子力显微镜对其形貌、生长特征等进行了测试和表征。结果表明,在衬底温度为200℃的ITO衬底上沉积的ZnO种子层具有良好的结晶性。当生长时间为9 h,水浴温度为95℃,聚乙烯亚胺(PEI)浓度为4. 5 mmol/L时,通过CBD法生长的ZnO纳米线呈六角形状垂直排列于具有种子层的ITO基片上,长径比高达20. 56。
In order to prepare vertically aligned ZnO nanowires with high aspect ratio,ZnO seed layers were deposited on ITO transparent conductive glass substrate with different temperature,which were used to synthesize the ZnO nanowires by chemical bath deposition(CBD) method. The synthesized condition were systematically investigated. The morphology and growth behavior of Zn O seed layers and nanowires were characterized by scanning electron microscopy and atomic force microscopy. The results show that ZnO seed layer deposited on ITO substrate with 200 ℃,exhibited excellent crystallinity. Furthermore, on the above mentioned substrate, and the water bath temperature was fixed at 95 ℃,the Polyethylenimine(PEI) were carried out at 4. 5 mmol/L and thegrowth time was 9 h,the obtained ZnO nanowires were vertically grown on ITO substrate with a hexagonal configuration and presented a well array with a high aspect ratio of 20. 56.
In order to prepare vertically aligned ZnO nanowires with high aspect ratio,ZnO seed layers were deposited on ITO transparent conductive glass substrate with different temperature,which were used to synthesize the ZnO nanowires by chemical bath deposition(CBD) method. The synthesized condition were systematically investigated. The morphology and growth behavior of Zn O seed layers and nanowires were characterized by scanning electron microscopy and atomic force microscopy. The results show that ZnO seed layer deposited on ITO substrate with 200 ℃,exhibited excellent crystallinity. Furthermore, on the above mentioned substrate, and the water bath temperature was fixed at 95 ℃,the Polyethylenimine(PEI) were carried out at 4. 5 mmol/L and thegrowth time was 9 h,the obtained ZnO nanowires were vertically grown on ITO substrate with a hexagonal configuration and presented a well array with a high aspect ratio of 20. 56.
引文
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[12]李小鹏,黄瀛,韦小凤,等.氧气分压对AZO薄膜晶体结构和光学性能的影响[J].广西大学学报(自然科学版),2014,39(3):559-562.
[13]高广震,李飞,张大凤,等.硫酸铵对氧化锌生长及形貌的影响[J].聊城大学学报(自然科学版),2012,25(4):53-57.
[14] TIAN J H,HU J,LI S S,et al. Improved seedless hydrothermal synthesis of dense and ultralong Zn O nanowires[J].Nanotechnology,2011,22(24):245601.
[2] KWAK C H,WOO H S,AH F,et al. Vapor-phase growth of urchin-like Mg-doped Zn O nanowire networks and their application to highly sensitive and selective detection of ethanol[J]. Sensors&Actuators B Chemical,2016,223:527-534.
[3] YIN Y T,QUE W X,KAM C H. Zn O nanorods on Zn O seed layer derived by sol-gel process[J]. Journal of Sol-Gel Science and Technology,2010,53(3):605-612.
[4] KIM S K,GOPI C VV M,SRINIVASA Rao S,et al. Highly efficient yttrium-doped Zn O nanorods for quantum dot-sensitized solar cells[J]. Applied Surface Science,2016,365:136-142.
[5] BAXTER J B,WALKER A M,VAN O K,et al. Synthesis and characterization of Zn O nanowires and their integration into dye-sensitized solar cells[J]. Nanotechnology,2006,17(11):304-312.
[6] GHOUL M,BRAIEK Z,BRAYEKA,et al. Synthesis of core/shell Zn O/Zn Se nanowires using novel low cost two step selector chemical deposition technique[J]. Journal of Alloys and Compounds,2015,647:660-664.
[7] SONG J Z,NING X,ZENG H B. Zn O nanowire lines and bundles:template-deformation guided alignment for patterned field-electron emitters[J]. Current Applied Physics,2015,15(11):1296-1302.
[8] CAO B Q,LORENZ M,RAHM A,et al. Phosphorus acceptor doped Zn O nanowires prepared by pulsed-laser deposition[J]. Nanotechnology,2007,18(45):455707-45571.
[9] LI Y,MENG G,ZHANG L,et al. Ordered semiconductor Zn O nanowire arrays and their photoluminescence properties[J]. Appl Phys Lett,2000,76(15):2011-2013.
[10]冯秋菊,许瑞卓,郭慧颖,等.衬底位置对化学气相沉积法制备的磷掺杂p型Zn O纳米材料形貌和特性的影响[J].物理学报,2014,63(16):420-425.
[11]夏文高,陈金菊,邓宏.低温CVD法在玻璃衬底上制备Zn O纳米线阵列[J].发光学报,2010,31(2):258-260.
[12]李小鹏,黄瀛,韦小凤,等.氧气分压对AZO薄膜晶体结构和光学性能的影响[J].广西大学学报(自然科学版),2014,39(3):559-562.
[13]高广震,李飞,张大凤,等.硫酸铵对氧化锌生长及形貌的影响[J].聊城大学学报(自然科学版),2012,25(4):53-57.
[14] TIAN J H,HU J,LI S S,et al. Improved seedless hydrothermal synthesis of dense and ultralong Zn O nanowires[J].Nanotechnology,2011,22(24):245601.